Tabhoo 21

Nzvimbo yekuisa haina nzvimbo yekushanda

Matanho: Kunyange kana kuiswa kwacho kuchinetsa pakutanga, zvakakosha kufunga nezvebasa renguva refu remushandisi uchiisa iyovharafuzvekushanda.Kuti uite kuvhura nekuvharavharafuzviri nyore, zvinokurudzirwa kuisa handwheel yevharuvhu kuitira kuti ienderane nechipfuva (kazhinji 1.2 metres kubva pauriri hwekamuri yekuvhiya).Kuti udzivise kushanda kusina kunaka, vhiri remaoko revhavha yekumhara inofanira kutarisana kumusoro uye kwete kutsika.Mavharuvhu emuchina wemadziro nezvimwe zvikamu zvinofanirwa kubvumira nzvimbo yakakwana kuti mushandisi amire.Izvo zvine njodzi kushanda mudenga, kunyanya kana uchishandisa acid-base, ine njodzi media, nezvimwe.

Tabhoo 22

Mavharuvhu akagadzirwa nezvinhu zvinokanganisa brittle

Matanho: Pakuisa nekuvaka, chenjerera uye ugare kure nekurova brittle-material mavharuvhu.Tarisa vharafu, fungidziro, uye mamodheru usati waiswa, uye tarisa chero kukuvadzwa, kunyanya kune hunde revharuvhu.Dzinde revharuvhu rinonyanya kutsvetwa panguva yekutumira, saka shandura iyo nguva shoma kuti uone kana iri.Chenesa vharafu pane chero tsvina zvakare.Kuti udzivise kukuvadza vhiri reruoko kana hunde yevharuvhu paunenge uchisimudza vheji, tambo inofanira kusungirirwa kune flange pane chimwe chezvikamu izvi.Kubatanidza pombi yevharuvhu kunoda kucheneswa.Kubvisa iron oxide machipisi, jecha revhu, welding slag, nezvimwe zvakasiyana, shandisa mweya wakadzvanywa.Mahombe sundries particles, akadai welding slag, anogona kuvharidzira mavharuvhu madiki uye kuita kuti asashande pamwe nekukwenya zviri nyore kuvharisa pamusoro pevharuvhu.Kuti udzivise kukwira muvharuvhu uye kukanganiswa nekuyerera kwepakati, chisimbiso chekuisa (mutsara hemp pamwe nelead oiri kana PTFE raw material tepi) inofanira kuputirwa neshinda yepombi isati yabatanidza screw valve.Iva nechokwadi chekusimbisa mabhoti akaenzana uye akaenzana paunenge uchiisa mavharuvhu ane flanged.Kuti udzivise vheji kuti irege kubudisa kudzvinyirira kwakanyanya kana kuti inogona kuputika, pombi yepombi uye flange yevhavha inoda kufanana uye ine chiyero chakakodzera chekuregererwa.Brittle zvinhu uye yakaderera simba mavharuvhu zvinoda kutariswa kwakakosha.Mavharuvhu epombi-welded anofanirwa kuve akakwenenzverwa kutanga, achiteverwa nekuvhurwa kwakakwana kwezvikamu zvekuvhara, uye pakupedzisira, akafa welding.

Tabhoo 23

Ivhavha haina kuchengetedza kupisa uye matanho ekuchengetedza kutonhora

Matanho: Mamwe mavharuvhu anodiwawo kuti asanganise ekunze ekudzivirira maficha ekupisa uye kutonhora kuchengetedza.Dzimwe nguva pombi inopisa inopisa inowedzerwa kune insulation layer.Mhando yevhavha inofanirwa kuchengetwa ichidziya kana kutonhora zvinoenderana nezvinodiwa zvekugadzira.Muchidzidzo, kuchengetedza kupisa kana kutsvagisa kupisa kunodiwa kana iyo yepakati mukati mevharuvhu ichitonhora zvakanyanya, izvo zvinoderedza kugona kwekugadzira kana kuita kuti vharuvhu iome.Saizvozvo, kana vharuvhu yave pachena, iyo yakaipa pakugadzirwa kana mhedzisiro yechando uye zvimwe zvisingadiwi zviitiko, valve inoda kuchengetwa inotonhora.Cold insulation zvinhu zvinosanganisira cork, perlite, furo, plastiki, diatomaceous pasi, asbestos, slag wool, girazi mvere, perlite, diatomaceous pasi, nezvimwe.

Tabhoo 24

Steam trap haina kuiswa bypass

Zviyero: Mamwe mavharuvhu ane zviridzwa uye bypasses mukuwedzera kune ekutanga kuchengetedza maficha.Kuti zvive nyore kugadzirisa musungo, bypass yakaiswa.Kune mamwe mavharuvhu akaiswa ne bypass.Mamiriro ezvinhu, kukosha, uye zvinodiwa zvekugadzira zvevhavha zvinotarisa kana panofanira kuiswa.

Taboo 25

Kurongedza hakuna kuchinjwa nguva dzose

Matanho: Mamwe mavharuvhu ari muzvitoro anoda kutsiviwa sezvo asingashande kana kusapindirana nepakati ari kushandiswa.Bhokisi rekuputira rinogara rakazadzwa nekurongedza nguva dzose uye valve inoratidzirwa kune zviuru zvemashoko akasiyana-siyana, zvisinei kana valve iri kushanda, kurongedza kunofanira kugadzirirwa kune vezvenhau.Dzvanya chiputiriso panzvimbo nekutenderera mumatenderedzwa.Musono wega wega wedenderedzwa unofanirwa kuva madhigirii makumi mana nemashanu, uye misono yemadenderedzwa inofanira kunge iri 180 madhigirii akasiyana.Chikamu chezasi chegland chinofanira iko zvino kudzvanywa kusvika pakadzika kwakakodzera kwekamuri yekurongedzera, iyo inowanzova 10-20% yehudzamu hwese hwekamuri yekurongedzera.Kureba kwekurongedzerwa kunofanirwa kutarisisa izvi.Iyo seam angle yemavharuvhu ane stringent criteria i30 degrees.Denderedzwa seams inosiyana ne120 degrees kubva kune imwe.Matatu erabha maO-rings (rabha rinopokana nealkali isina simba iri pasi pe60 madhigirii celsius, nitrile rabha rinopokana nemafuta ari pasi pe80 madhigirii celsius, uye rabha refluorine rinopokana nezvinosvibisa zvakasiyana-siyana zvinoparadza zviri pasi pe150 madhigirii celsius) zvinogona kushandiswawo, zvichienderana nemamiriro ezvinhu. , kuwedzera kune ambotaurwa mazadza.Mhete dzenaironi (inodzivirirwa neammonia nealkali iri pasi pe120 madhigirii celsius), mhete dzepolytetrafluoroethylene (dzisingachinji kune zvinopisa zvinopisa zviri pasi pe200 madhigirii celsius), nemamwe mafirita. Putira chidimbu chetepi mbishi yepolytetrafluoroethylene kunze kweasbestos nguva dzose. uye kuderedza kudzikira kwevharuvhu kubva pakuita kwe electrochemical.Kuti uchengetedze nzvimbo yacho uye kuti isanyanya kufa, puruzira tsinde yevharuvhu uchimanikidza kurongedza.Usarerekera paunenge uchiomesa gland nekuedza kusingachinji.